Heilmann combing-machine.



J. G. A. WENNING.

HEILMANN GOMBING MACHINE.

APPLIOATION FILED MAY 27, 1909.

Patented Mar. 18, 1913.

'FIG 1 INVENTQR,

m m E E WW D R @W m T m H y DH WITNESSES;

JEAN CHARLES ALFRED WENNING, or MiTLI-IAUSEN, GERMANY, ASSIGNOB TO THEFIRM or sooIE'rn ALSACIENNE DE CONSTRUCTIONS MEoANIaUEs, or MI'TLHAUSEN,

GERMANY.

HEILMANN COMBING-MACHINE.

To all whom it may concern Be it known that I, JEAN CHARLES An FREDWVENNING, a subject of the Emperor of Germany, and resident ofMiilhausen, Alsace-Lorraine, Germany, have invented new and usefulImprovements in Heilmann CombingJIachines, of which the following is afull, clear, and exact specification.

The present invention relates to Heilmann combing machines, having arotary combing cylinder, a feed nipper device, a drawing-oif device anda picking comb, said devices being relatively movable to one another forthe drawing-off operation. In combing machines of this kind, thedrawing-ofl device comprises two grooved drawing-off rollers one abovethe other, between which is a leather sleeve (drawing-off creeper)passing around the lower roller, whereby the pressure for seizing orgripping the fibers (tuft) which are to be drawn off, is brought to bearupon the upper drawingoff roller. In this arrangement the upperdrawing-off roller does not have its journals fixed in the membercarrying the two drawing-off rollers, but its journals are movable inthe direction of the lower roller so as to allow the meshing of thegrooves of the two rollers by means of the intermediate drawing-01fcreeper. The distance between these rollers measured from axle to axleis not constant, but increases and diminishes each time a groove passes,which causes the upper drawing-off roller to have a vibratory movement.The journals of the lower drawing-off roller were formerly fixed in apart of the machine. Practice has shown that this vibratory movement ofthe upper drawing-oif roller prejudiced the good working of the machine,that is to say, influenced the property of the material worked upon, inthat the picking comb (fixed comb) which comes int-o contact with theupper roller at the end of the drawing-off operation, is in a likemanner caused to vibrate, which interferes with its precise position.

The present invention relates to Heilmann combing machines of the kindreferred to, but obviates this inconvenience. To this end, in thepresent improvement, the two drawing-off rollers which perform thedrawing-off operation are so arranged that the drawing-off rollerreceiving the gripping pressure for said operation is placed, not above,but underneath the other drawing- Specification of Letters Patent.

Application filed May 27, 1909.

Patented Mar. 18, 1913.

Serial No. 498,711.

off roller which has its journals fixed. As the picking comb now comesonly into contact with the fixed drawing-off roller, it cannotconsequently be vibrated. This arrangement has, further, the importantadvantage of facilitating the removal or the changing of a creeper incombing machines having several heads when the creeper becomes worn orpolished. In this case it is sufiicientto only remove the damagedcreeper by removing the roller on which the pressure acts, whereashitherto it was necessary to remove all the creepers in the ordinarycombing machines in which the creepers of all the heads surround theprin cipal drawing-off roller which is made in one piece.

The accompanying drawing shows by way of example two embodiments of theinvention, in each of which the drawing-off rollers are arranged tooscillate in the drawing-oif operation.

Figure 1 shows the first, preferred form in which the journals of thelower drawingoif roller are movable in aslot. Fig. 2 shows the secondform in which the journals of the lower drawing-elf roller are fixed ina movable lever controlled by a spring.

In these figures, a is the picking comb or fixed comb, Z), 6 the upperand lower jaws of the feed nipper, and 0 the drawing-off creeper.

In the arrangement of Fig. 1, the drawing-oif rollers (Z, c, placed oneabove the other, are carried by a lever f oscillating about f andarranged to move the drawingoff rollers relatively to the nipper aws b,b for the drawing-off operation, said movement of the lever f being socontrolled that the upper drawing-off roller (Z may substantially comeinto contact with the picking comb a at the end of the drawing-ofioperation. The journals of the upper drawingoff roller (Z are fixed inthe lever f, while those of the lower drawing-off roller 6 engagesliding carriers movable up and down in guide-slots m of the lever f andcontrolled by one or more sustaining springs 9 designed to lift saidcarriers for the lower drawing off roller cl and to thus exert thenipping pressure. The drawing-0E creeper 0 passes, in the usual manner,round the lower drawing-off roller 6.

In the arrangement shown in Fig. 2, the journals of the lowerdrawing-off roller 6 are lined. in. a lever f pivoted. at 71, on theprincipal, lever j and controlled by a spriiilg '2'. The principal leverf is pivoted at f and carries the upper drawing-oil roller (Z. The leverf controlled. by the spring 2' gives the nipping or seizing n'essure andallows the lower drawing-oft roller 0 to yield to a certain amountduring the meshing of the groores.

It is evident that the nipping pressure of the lower drawingbtt roller 6could also be operated independent of the lever f l hat I claim is:

1. in l-leilmann combing machines a feed nipper device a couple ofsuperimposed drawing-oft rollers with a drawing-oh? creeper between.them, a movable picking comb arranged to be lowered into a positionopposite to the upper drawing ft roller, an oscillating lever mechanismfor carrying and operating said couple of drawing-off rollers, movablesupporting means on said lever mechanism "for supporting the lowerdrawing-oil roller so as to render itcapable of raising" and loweringrelatively to the upper roller, and a yielding device for lifting saidsupporting means to exert from below the nipping pressure in thedrawing-oil roller ooms? coil )le without; interlerin with the Jiohin 7C? 21') comb, sul)stantially as and for the purpose a described.

2. ln. lleihnann combing n'mchines, a feed nipper device, a couple oi?superimposed drawing-oil rollers with a drawing-0d creeper between. thema mo able picking comb arranged to be lowered. into a position oppositeto the upper drawingpfl roller an oscillating lever for carrying andoperating said couple of drawing-off rollers, upwardly directedguidcslots on said oscillating lever, supporting slide carriers in saidguide-slots for slidably supporting the lower drawingoll roller, and.sustaining springs for lifting said roller carriers to exert from belowthe nipping pressure .in the drawing-ell device without interfering withthe picking comb, substantially as and for the purpose dc scribed.

in witness whereof I have hereunto signed my name this 14th day of May1909 in the presence of two subscribing witnesses.

JEAN CHARLES ALFRED WENNlNG- ll it-nesses Gno. G1 Front), AMAND GRAGEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, ."D. 6.

